| Part # Key: R-XX-1=Screw | R-XX-2=Nut | R-XX-3=Mounting Flanges | CAD | ||||||
| Part Number Diagram |
Rated Loaded Capacity | Number of Turns Per Inch of Travel | Standard Length Screw (ft)† | Catalog Page | |||
| Stationary Part | Unloaded Condition | Under Rated Load | |||||
| With Load | Against Load | ||||||
| R-1-1 R-1-2 |
300 | Nut | 5.11 | 5.13 | 5.47 | 6 | |
| R-2-1 R-2-2 |
150 | Nut | 11.72 | 11.89 | 12.15 | 4 | |
| R-4-1 R-4-2 |
450 | Nut | 3.48 | 3.50 | 3.80 | 6 | |
| R-6-1 R-6-2 |
900 | Nut | 3.48 | 3.50 | 3.80 | 4 | |
| †Longer lengths available (consult factory) | |||||||
| STANDARD MOUNTING FLANGES | PIN LOCATION | |||||||||
| Part Number Diagram |
Outside Diameter | Width | Bolt Hole Pattern | Part Number | Between Pin*
Dimension |
Stroke Plus Constant
Equals Pin Locations (A) |
Catalog Page | |||
| Number | Diameter | Bolt Circle Diameter | ||||||||
| R-1-3 | 2.000 | .400 | 4 | .177 | 1.625 | R-1-1 | A | Stroke + 1.532 = A | ||
| R-2-3 | 2.000 | .400 | 4 | .177 | 1.625 | R-2-1 | A | Stroke + 1.375 = A | ||
| R-4-3 | 2.600 | .530 | 4 | .266 | 2.090 | R-4-1 | A | Stroke + 2.200 = A | ||
| R-6-3 | 3.250 |
.630 | 4 | .266 | 2.750 | R-6-1 | A | Stroke + 2.321 = A | ||
*NOTE: Pins must be placed in center of ball groove for proper engagement. The products shown in this catalog are intended for industrial use only and should not be used to lift, support or otherwise transport people, unless you obtain a written authorization for each individual application from Rockford Ball Screw Co. The specifications and data in this publication are believed to be accurate and reliable. However, it is the responsibility of the product user to determine the suitability of Rockford Ball Screw products for a specific application. |